I just realised, if he a decadent of 2 gods and a son of one titan. Isn't he like, a god? I mean MR.D is a halfgod and gilgamesh was born from a demigod father and a goddess mother and he was called a god among humans. So, what does that makes Sebastian?
Wouldnt the horse always be loyal to Poseidon and his children before the mc since hes the god of horses should have got a big magical boar since theyre ares beasts